Road roller



Dec. 23, 1941. R, R w Y 2,266,924

' ROAD-ROLLER v v Filed Dec. 6, 1940 SSheeYs-Shet 2 INVENTQR ATTORNEY IDec. 23, 1941.

' R. v R. TWAY ROAD ROLLER Filed Dec; 6, 1940 3 Sheets-Sheet 5 JINVENTORQ v ATTORNEY Patented Dec. 23, 1941 7 Claims.

My invention relates to road rolling apparatus, and more particularly toapparatus for compressing oil mixed roads and road sub-grades.

Road rollers, of the vehicle type, are now being used wherein a body orframe is provided at both its front and rear ends with a set of multiplepneumatic tired wheels. The wheels of each set are usually mounted upona single axle and are spaced slightly from each other along the axle. Itis common practice to space the wheels of the different sets so that therear wheels are aligned with the spaces between the front wheels. Thisarrangement causes substantially the entire road surface, over which thevehicle passes, to be contacted by the tires on the wheels.

That type of roller has proved entirely satisfactory, so far as properlycompressing the road surface is concerned, but when one of the insidetires of a set is worn out or is punctured, it is necessary-todisconnect the axle from the frame, and'to remove some of the outsidewheels from the axle, in order to remove the one wheel needing repairs.i i

It is the prime object of the present invention to provide a multiplewheel assembly, in which the wheels are laterally aligned with eachother and are laterally spaced in relation to the vehicle frame, but inwhich provision is made fornovel axle mounting mechanism for vehiclewheels,

Other objects will be apparent from the f lowing description when takenin connection with the accompanying. three-sheet drawings, wherein:

Figure 1 is a side elevational view of a preferred type of the roller;

Figure 2 is a rear end elevational view of the roller, takensubstantially from the right hand end-of the vehicle as depictedin'Figure 1;

Figure 3 is a front end elevational view; Figure 4 is a fragmentary rearend elevation, illustrating the manner in which an inside wheel may beindividually removed from its assembly;

Figure 5 is a typical fragmentary vertical sectional view taken throughone ofthe wheels;

I Figure 6 is a fragmentary side elevational view of the lower endof oneof the wheel supporting arms of the vehicle;

Figure 7 is a view similar to Figure 6, but show ing an alternativemeans for fastening one end of a wheel axle to the lower end of the arm;and,

Figure 8 is'a bottom view of Figure 7. Like characters of referencedesignate like parts in'all ofthe figures.

- In the drawings:

The reference numeral I indicates as a whole a vehicle frame or bodyhaving a front end portion 2, and a rear end portion 3. Intermediate theportions 2 and 3 is provided a bin 4' adapted leg, between which thewheel is mounted.

' at each end as shown at 25 to receive a retaining heavy yoke 5 havingoutside depending arms 5 and I, and having therebetween a suitableplurality of spaceddepending legs 8, 9 and Ill. The yoke, its arms, andits legs are all constructed of heavy metal beams integrally assembled,and the yoke is pivotally connected to the body portion 2 by a usualking-bolt ll. vA usual fifthwheel mechanism I2 is provided around thekingbolt between' yoke 5 and body for an obvious purpose. The arms 6 andI are'each provided with a pair offorwardly projecting laterallyperforated ears It whereby a tongue i5 may be attached to the yoke bybolts It.

The lower ends of the arms 6. and "I, and the intermediate legs 8, 9 andIII, are all formed with laterally projecting flanges 5|, and each alsohas a transverse groove ll (Figure 6), for a purpose more fullydescribed hereinbelow.

In carrying out the present invention, a plurality of pneumatic tiredwheels 19 are individually mounted beneath the yoke 5, one each betweenthe arm 6 and leg 8, between the legs 8 and 9, between the legs 9 andI0, and between the leg i0 and arm I. In order to individually mountthese wheels rotatively, each wheel is provided with an individual shortaxle 18, the length of- Q which is slightly less than the distance fromcenter to center of the arm and leg, or. leg and A typical axle andwheel assembly is ill trated in Figure 5 wherein the reference nume 20indicates a'usual wheel web having "a usua central hub 2| which islaterally bored $01 l ceive a pair of suitable anti-friction bearingsthrough which the axle l8 extends. Atthe- 0 side end of each bearing 22is a sealing gasket and a thrust washer 24. The axle I8 is threaded 2put a. and a lock-washer 21 and lock-nut 2a is also provided to insureagainst displacement placed within a portion of one of the previouslymentioned transverse grooves l1, and a similarly grooved plate 30 isbolted to the bottom of the leg or arm by bolts ll, as best shown inFigures 4 and 6. As clearly shown in Figure 4, the plates ll are onlyabout one-half the width of the lower ends of the arms and legs, andconsequently the removal of two adjacent plates 30 will release anydesired one of the axles l8.

It will be understood, of course. that when the wheels I! are inassembled positions, .the axles I. are all in axial alignment with eachother.

As best illustrated in Figure 4, the present wheel assembly eliminatesthe necessity of using a usual vehicle jack in order to remove orreplace any one wheel of the assembly. All that is necessary is to rimone wheel of the assembly upon a block 32 as shown. One end of the wheelassembly will thus be raised sufficiently to permit removal of the nextadjacent wheel, and as previously stated herein this is accomplished bymerely removing the bolts 3| and dropping down the two proper plates 30.

Beneath the rear end portion 3 of the body I, there is provided a rigidtransverse beam lll having a plurality of spaced depending legs Isimilar in construction tothe legs of the front wheel assembly, as abovedescribed. Wheels 43, similar to the front wheels is are mounted in asimilar manner between the legs 4 I As may be clearly seen in comparingFi res 1 and 2. the front wheels I! are so spaced in relation to therear wheels 43, that the wheels l9 and away from the plate, with thepivot pin it acting as a pivotal axis for such movement.

At a point located a short distance from the pivot-pin l8, and towardthe handle 62, the end portion 83 of the lever arm Cl is transverselyperforated to receive a second pivot-pin it. The pivot pin 9 acts as ameans for pivotally connecting the shank end ll of a clamping jaw memberII to the lever arm 60.

As best illustrated in Figure 7, the Jaw member It is provided with ahook portion 12 at its free end which is adapted to extend upwardly pastthe ends of the plate ll-a and the flange ii of the arm I, and to hookover the upper surface of the flange 5|.

Operation of the clamping mechanism 53 is substantially as follows:

With the jaw 10 and lever arm 60 in their installed positions, as shownin Figure 7, the first downward movement of the handle 2 acts to urgethe cam surface 68 into engagement with the lower surface of the plate-41.. Further movement of the handle forces the shank-ll. of the jawmember 10 away from theplate 3H. This loosens the hook portion 12sufllciently to release it from its clamped engagement with the arealigned with the spaces between the wheels p 43. This arrangementinsures complete wheel coverage of the road surface over which thevehicle is drawn. A plurality of the vehicles may be used one behind theother when desired.

In Figures 7 and 8 is illustrated a means. other than the bolts 3| andplates 30, for holding the axles I! in rigid position beneath the legsor arms, as the case may be. In this embodiment, the plate 3| issupplanted by a somewhat similar plate Sl-o which differs from the plate30 by having at one end a hook adapted to engage over the upper surfaceof the lower flange SI forming a part of each arm or leg. The uppersurface of the plate Il-a has two upstanding studs 52 adapted toregister with bolt holes in the flanges 5| when the plateis in properposition to retain the axle It.

The end ofthe plate 3H which lies opposite to the hooked end 50, isadapted to be held in contiguous relation to the adjacent flange 5| by alever operated clamping mechanism indicated as a whole by the referencenumeral 53. In order to accommodate the clamping mechanism 53, the lowersurface of the plate 30-a is provided with a depending boss 54 having atransverse perforation 55 therethrough. I

The clamping mechanism 53 consists substantially of a lever arm having asubstantially V-shaped central portion 8| adapted to extend along thenether surface of the plate "-11 and conform to exterior configurationthereof. The

lever arm 'is provided at one end with a downwardly extending handle'62, audits other end portion '3 is provided with a transverseperforaupper surface of the flange II, and drops the right hand end ofthe plate il-a away from the flange. The hook portion 5| at the' otherend of the plate can then be removed from around the other end of theflange 5|. Installation of the clamping mechanism will, of course, bethe reverse ofits removal; The mechanism remains connected to the plate3lla at all times due to the presence of the pin 66.

It is contemplated, when so desired, to arrange the wheel mountingmechanism in such a manner that the axles l8 are fixedly positioned inthe wheels, and are adapted to rotate in usual bearings. In such anembodiment, the plates 30 or 30-0 would be equipped with the bearings,

Obviously the invention is susceptible of em bodiment in forms otherthan those shown and described herein, and Itherefore do not wish toconflnemyself to specific form, other than I am limited by the scope ofthe appended claims.

Iclaim: r 1. Surface rolling apparatus including: a vehicle body; atransverse row consisting of four or more spaced depending legs rigidlycarried beneath both ends of the body; a vehicle wheel in each spacebetween adjacent legs; a short axle for each wheel, each axle extendingonly partial- 1y across the lower end of adjacent legs. and beingconstantly aligned axially; and individual means for removably anchoringeach end ofeach axle to the lower surface of one of said legs.

2. Surface rolling apparatus including: a ve-' of the adjacent legs, andbeing constantly aligned axially; a plate beneath each end of each axle;

and means for removably attaching each plate to the lower surface of oneof the legs.

2,2ee,a24 I 3 3. 111a vehicle wheel mounting mechanism,

the combination with two spaced depending legs carried by the vehicle,each leg having opposite-v ly disposed outwardly extending flanges attheir lower ends; a wheel between the legs; and an axle upon which thewheel is rotatably mounted, each end of said axle extending partiallyacross the lower ends of saidlegs, of means for anchoring each end ofsaid axle to one of said legs, including: a plate having a hook at onethe combination with two spaced depending legs carried-by the vehicle,each leg having opposite- 'ly disposed outwardly extending flanges attheir end engaged over the edge of one of said flanges,

ed, each end of said axle extending partially across the lower ends ofsaid legs, of means for anchoring each end of said axle to one of said 7legs, including: a plate having a hook at one v end engaged over theedge of one of said flanges,

and having a central portion for nesting said axle; a lever armpivotally connected at one end to the nether surface of said plate; aclamping jaw having a shank end plvotally connected to the lever armintermediate its end, said jaw hav ing a hook end the other flangeandthe free end of the plate, for holding the two in close proximity whenthe free end of the lever aante'is moved upwardly into contact with theP 5. In a vehicle wheel moimting mechanism,

lower ends; a wheel between the legs; and an axle upon which the wheelis rotatably mounted,

of means for anchoring each end of said axle to one of said legs,including: a plate having a hook at one end engaged over the edge of oneof said flanges, and having a central portion for nesting said axle; anda'lever actuated clamping jaw engaging the other flangeand the free endof the plate for holding the two in close proximity.

6. A wheel assembly for surface rollers, in-

cluding: a frame; a row of four or more spaced legs depending from saidframe; a wheel in each space between adjacent legs of'said row;

an individual axle for each wheel extending between the lower'ends ofsaid adjacent legs; and a pair of removable bearing plates for eachaxle, said plates each attached to the lower surface of oneof said legsfor holding one end of an axle beneath the leg'.

7. A wheel assembly for surface rollers, in-

cluding: a frame; a row of four or more spaced legs depending from saidframe; a downwardly facing surface upon each leg; a wheel ineach spacebetween adjacent legs of said roller; an individual axle for each wheel;said axles extending between two of said leg surfaces; and removabledetents for mountingthe axles rigidly to the respective surfaces,whereby removal of one pair of the detents permits the dropping of'oneaxle and its wheel for accomplishing removal of the wheel from betweensaid adjacent legs. I

ROBERT R. TWAY.

